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Finding the Fourth Proportional to 484,006.40, 726,787.20 and 365,811.20

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Solution

The fourth proportional to 484,006.40, 726,787.20 and 365,811.20 is: 549,304.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,006.40 : 726,787.20 = 365,811.20 : x
  2. Step 2: Convert to fraction form
    484,006.40/726,787.20 = 365,811.20/x
  3. Step 3: Cross multiply
    484,006.40x = 726,787.20 × 365,811.20
  4. Step 4: Simplify right side
    484,006.40x = 265,866,897,776.64
  5. Step 5: Solve for x
    x = 265,866,897,776.64/484,006.40
  6. Step 6: Final answer
    x = 549,304.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.